Assure that host hardware is on the virtualization software vendor's hardware compatibility list.
File management can get complicated on virtual machines. Virtualization software often uses cryptic file and directory names during the guest VM creation process. Don't be afraid to customize VM files to help identify host names and locations related to shared directory.
Enhance security by limiting host access and guest VM management.
Set performance goals. When loading-up a host server with VMs, 60% to 80% total utilization is a reasonable target for maintaining overall host and guest virtual machine performance and high ROI.
IRS Applications Modernization Vision and Strategy
IRS will couple some components of its account management services to new releases of its taxpayer database, the Customer Account Data Engine.
Applications and components reside across multiple servers.
Workload of about 100 servers has been migrated to three high-capacity servers.
Moving toward a more on-demand system in order to achieve this. They have been migrating to powerful servers, including a blade system.
State of Utah
State has moved heavily towards a service oriented architecture, with over 850 major systems & components. Allowing these to exist as discrete services that can be called from anywhere has allowed the state to break down previously existing silos.
Government IT Services: A Virtualization Approach
Some agencies are now developing new IT services nearly every month, making them available on their networks where they can be called by other applications.
Reducing complexity and forcing all systems to work in concert, some also are leaning toward system virtualization as a solution to their consolidation challenges.
Governments as a Proving Ground for Virtualization
As managers work to consolidate applications across multiple departments and agencies…
A virtualization environment can employ grid scheduling or advanced threading techniques
Allows a process to be redirected at any time to a different resource
The process will continue to execute where it left off upon its arrival at the new system
Resources increasingly are hosted on groups of shared servers
Able to call data and services from multiple other machines or systems
Allows for easier threading and resource sharing
Governments as a Proving Ground for Virtualization (cont’d.)
The main drivers
Ease of administration
Current government adaptation of virtualized environments
Often driven by IT systems integrators who are tasked by agencies to reduce their machine overhead or numbers of software licenses
Also being driven by builders of high-end servers and systems
Together, they support multi-threaded processing and embedded special technologies that enable service aggregation and management resources – with a consolidated, logical view